Platform for step ladder



FIG. 1 is a left side elevation view of a platform for step ladder showing my new design, the broken lines being for illustration only and forming no part of the invention. The right-side elevation view is a mirror image of FIG. 1;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a platform for step ladder, as shown and described. 